Latch



May 31, 1932.

LATCH Filed March 1e. 1929 INVENTOR.

Patented May 31x', V1932 UNITED srrATasl PATENT OFFICE THOMAs 1. ARCHER AND JOHN n. FLYNN, or DETROIT, MICHIGAN, AssI'GNOns TO TERNSTEDTl MANUFACTURING COMPANY, or' DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN LATCH Application led March 16, 1929. Serial No. 347,494. l

Fig. 7 is a detailed View of the lock tumbler This invention relates to ailatch and more particularly to a latch for refrigerators.

It is Common knowledge that the portion of the refrigerator door opposite the latch handle soon becomes marred and soiled through contact with the operators hand. It

I is one of the objects of this invention to obviate this worn or marred area on the refrig against the expansive action of the spring, it often happens thatf the handle is allowed tov fly freely back which not only resultsin the 2 denting and marring of the lock casing, but also produces undesirable noise. Hence',it is an object of this invention to provide a latch handle with a resilient bumper arranged to engage the casing of the latch.

present a latch having a unitary stamped metal nism. V' In the plunger type of latch, it is desirable for esthetic and operative reasons to have as many of the operating 'parts as possible hidden from view. Hence, this invention contemplates a latch in which the bolt may be completely 'retracted Without through the rear of the casing. In the drawings Fig. 1 is a front elevation of the latch. Fig.2 is a front elevation of the latch partly broken away and .with the'internal' mecha.-

,I nism of the latch in dotted lines.'

Fig. 3 is a longitudinalesectional View of the latch and striker attached to their'supports which are in dotted lines.

' Fig. 4 is a section along the line 41--4 of Fig. 3 when the latch bolt islocked.

Fig. 5 is a section similar to section 4 when the latch bolt is unlocked'ii` Fig; 1 when the latch boltis It is the further object'of this invention to.

. f h -1 tc h plate and casmg or t e a. h. mec' a portion of the latch support which would readily show the wearcaused by Contact 'with projecting to which the latch and striker are secured are v respectively the door 4 and the door frame 5.

The latch consists of the support plate 6, the l casing 7, and the apertured ears 8. The ears 8, the casing 7, and the supportplate 6 are unitary and stamped from a single piece of metal.

As shown in Fig` 1,-tl1e plate 6 has the extension .9. The handle '10 is pivotally mounted between the'ears 8 by means of the pin-'11. It will .be seen that the extension 9 of theysupport" late 6 is sulliciently large to serve as a shie d against which the hand of the operator contacts when the handle'l() of the latch is grasped to actuate the latch. This'. shield portion 9 therefore takes the place of what would otherwise be the painted sists of thebolt 12, the guide 13, the spring 14, the spring support rod 15, andthe loc l mechanism 1 f The guide 13 consists of the twol parallel wall portions 21,- each of which has a projecting apertured lug 22, and is arranged to lit within the casing 7 so that the lugs 22 coincide-.with the ears 8. The guide has the positioning lugsi23 which are arranged to abut against the latch support as at 24, (Fig. 3)

and the annulus 25 which has the diametri'- cally opposedrecesses 26 andl 27 and the EroJecting llfg 28. The bolt 12 has a sliding t within the' ide 13 and, as shown in Fig. 8, is flat and as the bifurcated end 43 in y which is rotatably mounted the roller 44 by means of the 45. I The bolt has the recessed portions 42 and 47, the purposes of which are-explained below, and the holes 48 and 49 for the spring support rod 15 which has a sliding engagement with the bolt. The

spring spport rod has the enlarged head bolt end lug 29. This arrangement of the internal latch mechanism permits the bolt to be completely retracted Without projecting through the rear of the casing. y

rIhe handle is ofthe bell crank type having-the spaced roll-backs 17 and the hole 18 in rwhich is cemented or otherwise secured the rubber bumper 19 which resilently engages the casing 7 as at 20. The bumper prevents the handle from marring the casing and prevents any noise when the handle is allowed to ily freely back into position. The handle is pivotally mounted between the ears 8 and between the lugsv 22 of the guide 13 by means ofthe pin 11 which also serves to fix the guide 13 within the casing. The roll-backs engage the lug 29 of the bolt,.one on each side of the spring support bar, and when the handlev 10 is actuated, retract the bolt l2 against the pressure of the spring 14. vThe bolt 12 slidably engages the spring support rod 15. The

casing has the struck-in lug 51which serves as a guide for the bolt. The lock cylinder is carried by the annulus 25 of the guide 13 and has a recess thereinw for the tumbler 31, and has the projecting lug 32. The tumbler 31 may be any wellknown type of `spring pressed cylinder lock tumbler which projects into the recess in the annulus 25 to interlock the lock cylinder and annulus 25. By inserting the key 37 in the key hole 36, the tumbler 31V is retracted and the lock cylinder is free to turn in the annulus 25.

34 and'35 (Fig. v7). By referring to Fig. 7, it will be noticed that the shoulders are not diametrically disposed. The cylinder has the recess 36 for the key 37. I

As shown in Figs. 2, 3, and `4, the lug 32 of the lock cylinder squarely abuts the shoulder 41 of the bolt, and hence the bolt is in locked position. To unlock the bolt, the lock cylinder is turned 180 by means of the key'f recess 42 and the bolt abuts against theend of the rod 15.

The lock cylinder has the arcuately recessed annulus 33with the shoulders What we'claim is: 1. In alatch for a refrigerator door, or the like, ofthe type having a reciprocable bolt, a composite casing for the said bolt consisting of an outer stamped member and an inner die-cast member arranged to fit within the said outer member and to serve as a guide for the said bolt, the said outer member serving to hold the said inner member in position. t

2. In a latch for a refrigerator door, or the like, having a reciprocable bolt and a handle therefor, a composite casing consisting of an outer stamped member and an inner die-cast member arranged to fit nicely within the said outer member to guide the said bolt and to support the said handle, the outer member "arranged to hold said inner member in position.

3. In a latch for a refrigerator door, or the like, a bolt having a flange at one end, a casing, a guide rod for the bolt, and a handle pivotally mounted on the said casing having a plurality of roll-backs strad dling the said guide rod and arranged to Engage the said flange to retract the said 4. A latch for a refrigerator door, or the apertured bolt with an apertured flange at one end, a casing, a guide rod arranged to slidably engage the said bolt and flange, and a handle mounted on the said casing having a roll-back arranged to engage the said l flange to retract the said bolt.

5. A latch for a refrigerator door, or thev like, having in combination a reciprocable apertured bolt with an apertured flange at one end, a casing,"a guide rod arranged to slidably engage the said bolt and flange, a handle pivotally mounted on said casing having a plurality of roll-backs straddling said rod and arranged to engage the said fiange to retract the said bolt.

In testimony whereof we have affixed our signatures.

THOMAS P. ARCHER. J OHN B.A FLY'NN.

like, having in .combination a reciprocable 

